Flat-bed, top and bottom coverstitch machineMF-7500/7500D series: C11 (collarette attaching)
Model: MF-7522-C11
Reference: MF-7923D-H23/UT
Cylinder-bed, top and bottom coverstitch machineMF-7900/7900D series: H22 (Hemming, for light-weight)MF-7900/7900D series: H23 (hemming, for medium-weight)
Model: MF-7923D-H23/UT